Mit vækkeur står ved siden af mit ur, og på hverdage står jeg som regel op halv syv.

Because both vækkeur and ur are neuter nouns in Danish.

Danish possessives agree with the grammatical gender of the noun:

• min = for common-gender singular nouns
• mit = for neuter singular nouns
• mine = for plural nouns

So:

• et vækkeur → mit vækkeur
• et ur → mit ur

A learner usually has to memorize whether a noun is en-word or et-word.

Vækkeur means alarm clock specifically.
Ur is a more general word meaning clock or watch, depending on context.

So:

• et vækkeur = an alarm clock
• et ur = a clock / a watch

That is why both can appear in the same sentence: one is the specific kind of clock, and the other is the more general item.

In Danish, stå is often used for objects that are in an upright position or are placed somewhere in a way that Danish conceptualizes as standing.

So Mit vækkeur står ved siden af mit ur is perfectly natural Danish, even though English would usually say My alarm clock is next to my clock/watch.

Danish often uses position verbs where English just uses is:

• stå = stand
• ligge = lie
• sidde = sit

This is a very common feature of Danish.

Ved siden af is a fixed expression meaning next to or beside.

It is best learned as a whole phrase:

• ved siden af = next to

Examples:

• Bogen ligger ved siden af lampen.
• Han sidder ved siden af mig.

The af is simply part of the idiomatic expression. English learners often want to translate word by word, but here it is better to treat ved siden af as one unit.

Because Danish is a V2 language in main clauses. That means the finite verb usually comes in the second position.

In this sentence, på hverdage is placed first for emphasis or topic:

• På hverdage = first position
• står = second position
• jeg = comes after the verb

So:

• Jeg står som regel op halv syv.
• På hverdage står jeg som regel op halv syv.

This inversion is very important in Danish. When something other than the subject comes first, the verb usually comes before the subject.

Because stå op is a verb plus particle, meaning to get up. In a main clause, Danish often splits these apart when the verb is finite.

So:

• infinitive: at stå op = to get up
• present tense main clause: jeg står op = I get up / am getting up

In the full sentence, other elements can come between them:

• På hverdage står jeg som regel op halv syv.

Here:

• står = finite verb
• op = particle

This is similar to separable verbs or phrasal-verb behavior.

Som regel means usually / as a rule and functions as an adverbial expression.

In the sentence:

• På hverdage står jeg som regel op halv syv.

it appears after the subject jeg and before the particle op. That placement is very natural in Danish.

A useful rough pattern is:

fronted element + finite verb + subject + sentence adverbial + particle + time

So here:

• På hverdage = fronted element
• står = finite verb
• jeg = subject
• som regel = adverbial
• op = particle
• halv syv = time

This is one of the most famous time-expression differences for English speakers learning Danish.

In Danish, halv syv literally means half to seven, not half past seven. So it means:

• halv syv = 6:30

More examples:

• halv otte = 7:30
• halv ni = 8:30

English speakers often misinterpret this at first, so it is worth memorizing carefully.

Because på hverdage means on weekdays in a general sense, and Danish commonly uses the plural without an article for this kind of habitual expression.

So:

• på hverdage = on weekdays
• om morgenen = in the morning
• om aftenen = in the evening

If you are speaking generally about a routine, Danish often does not need an article here.

It can mean either, depending on context. Ur is a general word for a timepiece.

So mit ur could be:

• my watch
• my clock

Only the situation tells you which is meant. In many learning sentences, this kind of ambiguity is normal. The grammar does not change either way.

Because the sentence talks about a repeated habit across multiple weekdays, not just one specific weekday.

• hverdag = weekday
• hverdage = weekdays

So på hverdage means on weekdays as a general routine. If you were talking about one specific weekday, the wording would be different.